Adage Capital Partners’s Aon AON Stock Holding History

Adage Capital Partners’s Portfolio AON Stock Details AON Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$71.7M	Sell	222,169 -384,400	-63%	-$128M	0.11%	186
2025 Q4	$214M	Sell	606,569 -39,500	-6%	-$13.8M	0.32%	54
2025 Q3	$230M	Buy	646,069 +343,800	+114%	+$124M	0.36%	40
2025 Q2	$108M	Buy	302,269 +131,300	+77%	+$47.6M	0.18%	111
2025 Q1	$68.2M	Buy	170,969 +78,900	+86%	+$30.3M	0.13%	160
2024 Q4	$33.1M	Buy	+92,069	New	+$33.9M	0.06%	306
2024 Q3	–	Sell	-28,569	Closed	-$8.39M	–	870
2024 Q2	$8.39M	Buy	+28,569	New	+$8.45M	0.02%	639
2023 Q1	–	Sell	-120,369	Closed	-$36.1M	–	917
2022 Q4	$36.1M	Buy	+120,369	New	+$35.2M	0.09%	272
2022 Q3	–	Sell	-171,169	Closed	-$46.2M	–	1048
2022 Q2	$46.2M	Buy	+171,169	New	+$49.2M	0.11%	202
2020 Q2	–	Sell	-231,724	Closed	-$38.2M	–	727
2020 Q1	$38.2M	Sell	231,724 -6,339	-3%	-$1.3M	0.11%	218
2019 Q4	$49.6M	Sell	238,063 -53,000	-18%	-$10.5M	0.12%	204
2019 Q3	$56.3M	Sell	291,063 -16,600	-5%	-$3.2M	0.14%	183
2019 Q2	$59.4M	Sell	307,663 -10,100	-3%	-$1.83M	0.15%	182
2019 Q1	$54.2M	Sell	317,763 -200,800	-39%	-$32.6M	0.14%	186
2018 Q4	$75.4M	Sell	518,563 -40,170	-7%	-$6.24M	0.21%	137
2018 Q3	$85.9M	Buy	558,733 +19,100	+4%	+$2.79M	0.19%	138
2018 Q2	$74M	Buy	539,633 +208,262	+63%	+$29.3M	0.17%	159
2018 Q1	$46.5M	Sell	331,371 -22,500	-6%	-$3.15M	0.11%	235
2017 Q4	$47.4M	Sell	353,871 -8,700	-2%	-$1.24M	0.11%	240
2017 Q3	$53M	Sell	362,571 -16,100	-4%	-$2.25M	0.13%	214
2017 Q2	$50.3M	Sell	378,671 -200	-0.1%	-$25.3K	0.12%	216
2017 Q1	$45M	Sell	378,871 -500	-0.1%	-$57.7K	0.11%	242
2016 Q4	$42.3M	Sell	379,371 -5,200	-1%	-$580K	0.12%	229
2016 Q3	$43.3M	Sell	384,571 -12,700	-3%	-$1.4M	0.12%	235
2016 Q2	$43.4M	Sell	397,271 -6,300	-2%	-$666K	0.12%	209
2016 Q1	$42.2M	Buy	403,571 +230,100	+133%	+$21.6M	0.11%	218
2015 Q4	$16M	Sell	173,471 -243,800	-58%	-$22.7M	0.04%	427
2015 Q3	$37M	Sell	417,271 -15,200	-4%	-$1.47M	0.1%	259
2015 Q2	$43.1M	Sell	432,471 -3,000	-0.7%	-$300K	0.11%	235
2015 Q1	$41.9M	Buy	435,471 +6,100	+1%	+$590K	0.1%	266
2014 Q4	$40.7M	Sell	429,371 -14,300	-3%	-$1.28M	0.1%	265
2014 Q3	$38.9M	Sell	443,671 -10,000	-2%	-$873K	0.1%	262
2014 Q2	$40.9M	Sell	453,671 -6,630	-1%	-$574K	0.11%	245
2014 Q1	$38.8M	Sell	460,301 -9,100	-2%	-$758K	0.11%	241
2013 Q4	$39.4M	Buy	469,401 +7,900	+2%	+$626K	0.1%	255
2013 Q3	$34.4M	Buy	461,501 +161,714	+54%	+$11.1M	0.1%	263
2013 Q2	$19.3M	Buy	+299,787	New	+$19M	0.06%	365

Other funds holding AON

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Adage Capital Partners's AON Position: Q1 2026 in Review

Adage Capital Partners reduced its Aon (AON) stake by 63% in Q1 2026, selling an estimated $128M and leaving 222,169 shares worth $71.7M. The position accounts for 0.11% of the portfolio, ranked #186.

Adage Capital Partners first reported a position in AON in Q2 2013 and has held it in 37 quarters since. The position peaked at $230M in Q3 2025. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

Adage Capital Partners held 222,169 shares of Aon worth $71.7M as of Q1 2026.
Adage Capital Partners sold 384,400 Aon shares in Q1 2026, an estimated $128M.
Aon made up 0.11% of Adage Capital Partners's portfolio in Q1 2026, its #186 holding.
Adage Capital Partners first reported a position in Aon in Q2 2013 and has held it in 37 quarters since.
Adage Capital Partners's Aon position peaked at $230M in Q3 2025.
1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.